Title | High nitrogen flux plasma-assisted molecular beam epitaxy growth of InxGa1-xN films |
Publication Type | Journal Article |
Year of Publication | 2020 |
Authors | Jorgensen, K. F., B. Bonef, and J. S. Speck |
Journal | Journal of Crystal Growth |
Volume | 546 |
Pagination | 125738 |
ISSN | 0022-0248 |
Keywords | A1. Atom Probe Tomography, A1. Atomic Force Microscopy, A1. High Resolution X-Ray Diffraction, A3. Molecular Beam Epitaxy, B1. Nitrides |
Abstract | Growth of efficient III-N based light emitting devices by plasma assisted molecular beam epitaxy has been elusive, even though the technique has attractive advantages in comparison to metal organic chemical vapor deposition. Modern high-flux radio frequency plasma systems could remedy this issue by enabling growth of InxGa1-xN at higher temperatures than previously possible, likely improving the material quality. In this work, active nitrogen fluxes of up to 3.5 μm/h GaN-equivalent growth rate were employed to grow InxGa1-xN alloys. InxGa1-xN growth rates of 1.3 μm/h were demonstrated at growth temperatures of 550 °C and 600 °C with maximum film compositions of In0.25Ga0.75N and In0.21Ga0.79N, respectively. A composition of In0.05Ga0.95N was observed in a film grown at 700 °C with smooth step-terrace morphology. |
URL | http://www.sciencedirect.com/science/article/pii/S002202482030261X |
DOI | 10.1016/j.jcrysgro.2020.125738 |